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Posted by: Calparsoni at Sat May 21 14:27:30 2011 [ Email Message ] [ Show All Posts by Calparsoni ] The outer layer of a tortoise shell may be made of keratin, however the actual shell is made up of bone. A turtle shell is basically a modified rib cage and sternum and is made up of calcium just like any other bone. | ||
<< Previous Message: RE: Incandescent bulb ban - Paradon, Sat May 21 11:28:24 2011 | ||
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